I want to implement the fade effect in the listview like in shown in the link. http://developer.android.com/resources/articles/listview-backgrounds.But here it is not explained how to implement that fade effect. Does anybody have any idea on this?
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I wanted to see if I could change the top/bottom wrap fading effect seen on most long scrolling components. In this case I would like to change the color from black to whatever color I desire on a ListView.
View 3 Replies View RelatedI am beginner on Android game. I want to make Fade-in and fade-out effect to transform scenes (Intro game -> play game -> win game/ over game,). Please tell me how to make Fade-in and fade-out effect in Android?
View 2 Replies View RelatedI updated my moment to the official 2.1 firmware from Sprint yesterday.I've looked in the menus, but can't find a setting for it.Does anyone know a way to disable the fade in/out of the screen when unlocking or putting the device back to sleep?
View 7 Replies View RelatedYou've probably seen the effect on the iPhone when you go to the next screen, it flips the screen, making it appear, like you just flipped over a card and a new screen appeared. There is a demo of something similar in the APIDemos (Views/Animation/ 3D Transition), but the transitions are between elements of the same page. Is there a way to implement the flip effect between Activities (in the same process)?
View 4 Replies View RelatedI have an application containing 3 interfaces(each one occupys a screen), I want to switch different interfaces by touching on the screen. Just like the desktop has 3 parts, we can move from one to anohter by touching. Can anyone tell me how to implement the kind of effect or where is the code of Android desktop slide effect.
View 4 Replies View RelatedI was interested in making a springy-bouncing effect for ListViews similar to one in iphone.I wanted to make sure about a few things before implementing it.
1). Does Android provide this feature somewhere in the new Donut version thats coming out?(so that i don't have to re-invent the wheel)
2). Do Google plan to add this feature in any future versions of the SDK?
For some reason, whenever I scroll through my list of items, the background inside my listview disappears and reappears giving rise to a "flicker" effect which I don't really want. I've tried the suggestion at: http://stackoverflow.com/questions/1377336/android-make-listview-transparent but it doesn't work for some reason. Any suggestions?
View 2 Replies View RelatedI want a ListView to have rubber-band (or bounce) effect while scrolling. Just similar to iPhone lists.
View 3 Replies View RelatedI have a ListView whose position should be changed automatically along with the data. So, when the adapter's data has changed (adapter is calling notifyDataSetInvalidated), I'm calling setSelection. This has no effect. If the call to setSelection is done later (e.g. in a click handler) it is working.
The second problem is, that the ListView maintains the scroll position of the list although the data is completely invalidated, that makes no sense IMO.
It looks like a call to layoutChildren before the call to setSelection does help in this case, but layoutChildren is protected.
What is the correct way to do this?
I'm new to Android, and I really need to do it this way (I've considered doing it in another Activity), but can anyone show me a simple code (just the onCreate method) that can do Listview without ListActivity?
View 3 Replies View RelatedCan anyone tell me how to implement a horizontal listView?
Items are scrolled horizontally.
In my project whenever I extend activity it works fine but as soon as I extend ListActivity it throws exception and shows file not found. Why is that? We already know that ListActivity itself extends the Activity class. The application must run fine.
Here's the java file:
package com.android.feedGrabber;
import java.net.URL;
import java.net.URLConnection;
import java.util.Collection;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import com.sun.cnpi.rss.elements.Item;
import com.sun.cnpi.rss.elements.Rss;
import com.sun.cnpi.rss.parser.RssParser;
import com.sun.cnpi.rss.parser.RssParserFactory;
If I change "extends Activity" to "extends ListActivity" it gives the exception. I need to bring this change because I want to implement it on ListView instead of TextView.
Error it throws:
debug mode gets active and it highlights under Suspended(exception RunTimeException): ActivityThread.performLaunchActivity(ActivityThread$ActivityRecord, Intent) line: 2663.
I have an ExpandableListView that I want to populate with my custom views of type NoteView. NoteView extends LinearLayout and contains two buttons and a checkbox. I have almost everything working, the NoteView's are being populated with backing data, the lists are getting filled, and the buttons are clickable and perform the required tasks.
The problem is the ExpandableListView no longer responds to click/longclick/keypress events at all (other than selecting list items with trackball/DPAD).
I replaced my custom view with a standard TextView and the touch events flowed normally again, so it is almost certainly something I am doing wrong with my custom view or some obscure ListView setting I am overlooking.
Here is my NoteView code and XML Layout. What am I missing?
CODE:.........................
I have a listview and implemented onclick and also onfling.problem is when i do fling(swipe left to right), onclick event of listview is also getting executed.How to overCome this problem? how to differentiate touch(tap) and fling(swipe) in listview? code...
P.S: is it possible? to comment the onclicklistener of listview and writing the same logic in any onTouchEvent? but still i doubt onfling will call ontouch. right?
Back when I originally wrote my app, I thought I could use some tricks with TransitionDrawable to briefly highlight some rows in a ListView. However, when I actually implemented this (a fading background), the background would jump from item to item randomly.
As my knowledge of Android has progressed, I've learned why this no longer works: the ListView uses optimizations and actually shuffles rows around, so the row that I may have originally told to animate ends up placed in a different spot by the time the ListView is visible.
My question is whether there's a solution to this problem. I've thought of using a different view type, but that would only work if I can turn *off* the view type for that row at the right time; since I'm using a TransitionDrawable, there's no way for me (right now) to mark once the animation is done.
Does anyone have any ideas on how to make a temporary fading background on particular rows in a ListView?
ListView Question! I know it's possible change the row color, but it's possible to put some imagem on background? And if yes, it's possible to create an imagem 1px and repeat-x or repeat-y like CSS?
View 2 Replies View RelatedI would like to change the background color of a ListView Item after it has been touched until a further event.
This is my code:
CODE:............
Changing the background color of view yields weird results.
I want have an image and i want to set it as a background of android list view. i have used android:background="drawable/image" but nothing happened. how to achieve this?
View 1 Replies View RelatedI have a LinearLayout layout with a ListView in it. I've made the android:background of the LinearLayout (I've also tried it on the ListView) be an image that I would like for my background.
This works fine enough. However, when I start scrolling through the ListView, the background often disappears and becomes black. If I move it around some more I may be able to get it to appear again. It would seem that Android is drawing over, or perhaps painting what's behind my background onto the items.
I have a ListView backed by customized ArrayAdapter where each item has 2 LinearLayouts - one I call head, and the other one - body.
The body is hidden (gone) until user clicks on the row at which time it slides out. The second click (on the head) will hide the body. However if user clicks on the body it brings another activity. All of this works just fine, here comes the problem:
When user presses on body I want a visual indication of the action just the same way as regular list item will flicker an orange background when pressed. I'm not getting this by default since (my theory) the onPress event is intercepted by body's view and not processed by the list item.
The first thing I tried was to execute body.setBackground('#ff00ff') (never mind the color) in onPress event. That didn't work since (I suspect) there's no repainting after the call. Then I dig a little bit more and decided to use <selector/>-based background. I defined body_background.xml in drawable folder and assigned that to the body's background property.
There I noticed that background will only change if the even is processed by the list. For example if I set <item android:state_selected="true" android:drawable="@drawable/selected"/> then when I press on the head - the background of both elements (head and body) will change, however when I press on body - nothing.
So to summarize my question - how do I change background of the child element in the list item if I assign custom onClick handler to it? Any hints will be greatly appreciated
I have created a specific List which exists out of the following elements to create a scrollable list with every row containing a Image on the left side and some text on the right side.As long as the screen is shown statically (as in no movement) it will be shown correctly, but when I start scrolling through the list the background of the row-item (an "icon" as can be shown in the code) will be shown corretcly but the background of the "root" layout will become completely black when the scrolling stops the background will, most of the times, get back it's color.As I test I also added a TextView in that root-element with the same background, this one will detain it's color when the List is scrolled.
View 3 Replies View RelatedI am developing an android application where I need to manipulate the background image of the rows in listview on certain conditions. Initially when the listview is loaded all works properly. But when I scroll down to the listview and come up again the background image changes. Can someone tell me the reason why its happening so? Hope to get the reply soon.
View 6 Replies View RelatedI have a ListView with a lot of "rows". In each row, i have one TextView with a background image. When i scroll, the images of the rows mixes... they jump to another row with the scroll.
In have tried android: scrollingCache="false" and android:cacheColorHint="#00000000" but nothing.
The images are loaded dinamically.
Part of my layout:
CODE:.........................
And part of my code:
CODE:............
"avatars" is a cache of Drawables. any idea?
CODE:.............
This is my current row. If I created a .JPEG, and I want that to be for each item...how would I change this .xml file? Where would I put the image? In Assets?
I have an array of all the URIs of the images which I am showing in a List. Now I want to run a thread in background which gets this images from web and store them on the SD card. So when I click a particular element in the list instead of fetching from web it should fetch from the SD card in the new activity.
View 3 Replies View RelatedIs it possible to apply a custom background to each Listview item via the list selector?
The default selector specifies @android:color/transparent for the state_focused="false" case, but changing this to some custom drawable doesn't affect items that aren't selected. Romain Guy seems to suggest in this answer that this is possible.
I'm currently achieving the same affect by using a custom background on each view and hiding it when the item is selected/focused/whatever so the selector is shown, but it'd be more elegant to have this all defined in one place.
For reference, this is the selector I'm using to try and get this working:
CODE:...............
And this is how I'm setting the selector:
CODE:.........................
I have defined a custom theme, where I am drawing a dark gradient on my window background. My ListView background is set to be transparent, however whenever I scroll, the background color turns black, and then after scrolling has stopped, goes back to the gradient color. Why is this?
CODE:.....................................
while scroll the listview, the Layouts background gets flickering. that is the layout is has a background image. this image will gets invisible and reload all the time while scrolling. how to rectify this? Any Idea?
Note: its happening for inbuilt android Array Adapter too.
CODE:.................
How can I change background color of ListView items on a pair-item basis. When I use android:backgroundColor in the ListView item layout I can achieve this, however the list selector is no longer visible. I can make the selector visible again by setting drawSelectorOnTop to true but then the selector overlays the whole item.
Any ideas how to change those background colors and keep the selector?
I would rather not change the selector itself.
Authors of GMail application have managed to achieve exactly this so it's definitely possible.